summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/source/latex/unicode-math/unicode-math-main.dtx
diff options
context:
space:
mode:
Diffstat (limited to 'Master/texmf-dist/source/latex/unicode-math/unicode-math-main.dtx')
-rw-r--r--Master/texmf-dist/source/latex/unicode-math/unicode-math-main.dtx590
1 files changed, 0 insertions, 590 deletions
diff --git a/Master/texmf-dist/source/latex/unicode-math/unicode-math-main.dtx b/Master/texmf-dist/source/latex/unicode-math/unicode-math-main.dtx
deleted file mode 100644
index 88c9524b18e..00000000000
--- a/Master/texmf-dist/source/latex/unicode-math/unicode-math-main.dtx
+++ /dev/null
@@ -1,590 +0,0 @@
-
-% \section{\DTXCURR --- The main \cs{setmathfont} macro}
-%
-% \begin{macrocode}
-%<*package&(XE|LU)>
-% \end{macrocode}
-%
-% Using a |range| including large character sets such as \cmd\mathrel,
-% \cmd\mathalpha, \etc, is \emph{very slow}!
-% I hope to improve the performance somehow.
-%
-% \begin{macro}{\setmathfont}
-% \doarg{font features (first optional argument retained for backwards compatibility)}
-% \darg{font name}
-% \doarg{font features}
-% \begin{macrocode}
-\DeclareDocumentCommand \setmathfont { O{} m O{} }
- {
- \@@_setmathfont:nn {#1,#3} {#2}
- }
-% \end{macrocode}
-%
-% \begin{macrocode}
-\cs_set:Nn \@@_setmathfont:nn
- {
- \tl_set:Nn \l_@@_fontname_tl {#2}
- \@@_init:
-% \end{macrocode}
-% Grab the current size information:
-% (is this robust enough? Maybe it should be preceded by \cmd\normalsize).
-% The macro \cmd\S@\meta{size}
-% contains the definitions of the sizes used for maths letters, subscripts and subsubscripts in
-% \cmd\tf@size, \cmd\sf@size, and \cmd\ssf@size, respectively.
-% \begin{macrocode}
- \cs_if_exist:cF { S@ \f@size } { \calculate@math@sizes }
- \csname S@\f@size\endcsname
-% \end{macrocode}
-% Parse options and tell people what's going on:
-% \begin{macrocode}
- \keys_set_known:nnN {unicode-math} {#1} \l_@@_unknown_keys_clist
- \bool_if:NT \l_@@_init_bool { \@@_log:n {default-math-font} }
-% \end{macrocode}
-% Use \pkg{fontspec} to select a font to use.
-% After loading the font, we detect what sizes it recommends for scriptsize and scriptscriptsize, so after setting those values appropriately, we reload the font to take these into account.
-% \begin{macrocode}
-%<debug> \csname TIC\endcsname
- \@@_fontspec_select_font:
-%<debug> \csname TOC\endcsname
- \bool_if:nT { \l_@@_ot_math_bool && !\g_@@_mainfont_already_set_bool }
- {
- \@@_declare_math_sizes:
- \@@_fontspec_select_font:
- }
-% \end{macrocode}
-% Now define |\@@_symfont_tl| as the \LaTeX\ math font to access everything:
-% \begin{macrocode}
- \cs_if_exist:cF { sym \@@_symfont_tl }
- {
- \DeclareSymbolFont{\@@_symfont_tl}
- {\encodingdefault}{\l_@@_family_tl}{\mddefault}{\updefault}
- }
- \SetSymbolFont{\@@_symfont_tl}{\l_@@_mversion_tl}
- {\encodingdefault}{\l_@@_family_tl}{\mddefault}{\updefault}
-% \end{macrocode}
-% Set the bold math version.
-% \begin{macrocode}
- \str_if_eq_x:nnT {\l_@@_mversion_tl} {normal}
- {
- \SetSymbolFont{\@@_symfont_tl}{bold}
- {\encodingdefault}{\l_@@_family_tl}{\bfdefault}{\updefault}
- }
-% \end{macrocode}
-% Declare the math sizes (i.e., scaling of superscripts) for the specific
-% values for this font,
-% and set defaults for math fams two and three for legacy compatibility:
-% \begin{macrocode}
- \bool_if:nT { \l_@@_ot_math_bool && !\g_@@_mainfont_already_set_bool }
- {
- \bool_set_true:N \g_@@_mainfont_already_set_bool
- \@@_setup_legacy_fam_two:
- \@@_setup_legacy_fam_three:
- }
-% \end{macrocode}
-% And now we input every single maths char.
-% \begin{macrocode}
-%<debug> \csname TIC\endcsname
- \@@_input_math_symbol_table:
-%<debug> \csname TOC\endcsname
-% \end{macrocode}
-% Finally,
-% \begin{itemize}
-% \item Remap symbols that don't take their natural mathcode
-% \item Activate any symbols that need to be math-active
-% \item Enable wide/narrow accents
-% \item Assign delimiter codes for symbols that need to grow
-% \item Setup the maths alphabets (\cs{mathbf} etc.).
-% This is an extensive part of the code; see Section~\ref{sec:mathmap}.
-% \item Setup negations, which are handled on an ad hoc basis; see Section~\ref{sec:negations}.
-% \end{itemize}
-% \begin{macrocode}
- \@@_remap_symbols:
- \@@_setup_mathactives:
- \@@_setup_delcodes:
-%<debug> \csname TIC\endcsname
- \@@_setup_alphabets:
-%<debug> \csname TOC\endcsname
- \@@_setup_negations:
- }
-% \end{macrocode}
-% \end{macro}
-%
-% \paragraph{Fall-back font}
-%
-% Want to load Latin Modern Math if nothing else.
-% This needs to happen early so that all of the font-loading machinery executes before
-% the other `AtBeginDocument' code.
-% \begin{macrocode}
-\AtBeginDocument { \@@_load_lm_if_necessary: }
-\cs_new:Nn \@@_load_lm_if_necessary:
- {
- \cs_if_exist:NF \l_@@_fontname_tl
- {
- % TODO: update this when lmmath-bold.otf is released
- \setmathfont{latinmodern-math.otf}[BoldFont={latinmodern-math.otf}]
- \bool_set_false:N \g_@@_mainfont_already_set_bool
- }
- }
-% \end{macrocode}
-% Note that here we reset the `font already loaded' boolean so that a new font being set
-% will do the right thing in terms of setting up defaults.
-%
-% TODO: need a better way to do this for the general case. (Maybe a `reset' command option?)
-%
-% \begin{macro}{\@@_init:}
-% \begin{macrocode}
-\cs_new:Nn \@@_init:
- {
-% \end{macrocode}
-% \begin{itemize}
-% \item Initially assume we're using a proper OpenType font with unicode maths.
-% \begin{macrocode}
- \bool_set_true:N \l_@@_ot_math_bool
-% \end{macrocode}
-% \item Erase any conception \LaTeX\ has of previously defined math symbol fonts;
-% this allows \cmd\DeclareSymbolFont\ at any point in the document.
-% \begin{macrocode}
- \cs_set_eq:NN \glb@currsize \scan_stop:
-% \end{macrocode}
-% \item To start with, assume we're defining the font for every math symbol character.
-% \begin{macrocode}
- \bool_set_true:N \l_@@_init_bool
- \seq_clear:N \l_@@_char_range_seq
- \clist_clear:N \l_@@_char_nrange_clist
- \seq_clear:N \l_@@_mathalph_seq
- \seq_clear:N \l_@@_missing_alph_seq
-% \end{macrocode}
-% \item By default use the `normal' math version.
-% \begin{macrocode}
- \tl_set:Nn \l_@@_mversion_tl {normal}
-% \end{macrocode}
-% \item Other range initialisations.
-% \begin{macrocode}
- \tl_set:Nn \@@_symfont_tl {operators}
- \cs_set_eq:NN \_@@_sym:nnn \@@_process_symbol_noparse:nnn
- \cs_set_eq:NN \@@_set_mathalphabet_char:nnn \@@_mathmap_noparse:nnn
- \cs_set_eq:NN \@@_remap_symbol:nnn \@@_remap_symbol_noparse:nnn
- \cs_set_eq:NN \@@_maybe_init_alphabet:n \@@_init_alphabet:n
- \cs_set_eq:NN \@@_map_char_single:nn \@@_map_char_noparse:nn
- \cs_set_eq:NN \@@_assign_delcode:nn \@@_assign_delcode_noparse:nn
- \cs_set_eq:NN \@@_make_mathactive:nNN \@@_make_mathactive_noparse:nNN
-% \end{macrocode}
-% \item Define default font features for the script and scriptscript font.
-% \begin{macrocode}
- \tl_set:Nn \l_@@_script_features_tl {Style=MathScript}
- \tl_set:Nn \l_@@_sscript_features_tl {Style=MathScriptScript}
- \tl_set_eq:NN \l_@@_script_font_tl \l_@@_fontname_tl
- \tl_set_eq:NN \l_@@_sscript_font_tl \l_@@_fontname_tl
-% \end{macrocode}
-% \end{itemize}
-% \begin{macrocode}
- }
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\@@_declare_math_sizes:}
-% Set the math sizes according to the recommended font parameters.
-% TODO: this shouldn't need to be per-engine; check out why the wrappers aren't used.
-% \begin{macrocode}
-\cs_new:Nn \@@_declare_math_sizes:
- {
-%<*LU>
- \fp_compare:nF { \@@_script_style_size:n {ScriptPercentScaleDown} == 0 }
- {
- \DeclareMathSizes { \f@size } { \f@size }
- { \@@_script_style_size:n {ScriptPercentScaleDown} }
- { \@@_script_style_size:n {ScriptScriptPercentScaleDown} }
- }
-%</LU>
-%<*XE>
- \dim_compare:nF { \fontdimen 10 \l_@@_font == 0pt }
- {
- \DeclareMathSizes { \f@size } { \f@size }
- { \@@_fontdimen_to_scale:nn {10} {\l_@@_font} }
- { \@@_fontdimen_to_scale:nn {11} {\l_@@_font} }
- }
-%</XE>
- }
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\@@_script_style_size:n}
-% Determine script- and scriptscriptstyle sizes using luaotfload:
-% \begin{macrocode}
-%<*LU>
-\cs_new:Nn \@@_script_style_size:n
- {
- \fp_eval:n {\directlua{tex.sprint(luaotfload.aux.get_math_dimension("l_@@_font","#1"))} * \f@size / 100 }
- }
-%</LU>
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\@@_setup_legacy_fam_two:}
-% \TeX\ won't load the same font twice at the same scale, so we need to magnify this one by an imperceptable amount.
-% \begin{macrocode}
-\cs_new:Nn \@@_setup_legacy_fam_two:
- {
- \fontspec_set_family:Nxn \l_@@_family_tl
- {
- \l_@@_font_keyval_tl,
- Scale=1.00001,
- FontAdjustment =
- {
- \fontdimen8\font= \@@_get_fontparam:nn {43} {FractionNumeratorDisplayStyleShiftUp}\relax
- \fontdimen9\font= \@@_get_fontparam:nn {42} {FractionNumeratorShiftUp}\relax
- \fontdimen10\font=\@@_get_fontparam:nn {32} {StackTopShiftUp}\relax
- \fontdimen11\font=\@@_get_fontparam:nn {45} {FractionDenominatorDisplayStyleShiftDown}\relax
- \fontdimen12\font=\@@_get_fontparam:nn {44} {FractionDenominatorShiftDown}\relax
- \fontdimen13\font=\@@_get_fontparam:nn {21} {SuperscriptShiftUp}\relax
- \fontdimen14\font=\@@_get_fontparam:nn {21} {SuperscriptShiftUp}\relax
- \fontdimen15\font=\@@_get_fontparam:nn {22} {SuperscriptShiftUpCramped}\relax
- \fontdimen16\font=\@@_get_fontparam:nn {18} {SubscriptShiftDown}\relax
- \fontdimen17\font=\@@_get_fontparam:nn {18} {SubscriptShiftDownWithSuperscript}\relax
- \fontdimen18\font=\@@_get_fontparam:nn {24} {SuperscriptBaselineDropMax}\relax
- \fontdimen19\font=\@@_get_fontparam:nn {20} {SubscriptBaselineDropMin}\relax
- \fontdimen20\font=0pt\relax % delim1 = FractionDelimiterDisplaySize
- \fontdimen21\font=0pt\relax % delim2 = FractionDelimiterSize
- \fontdimen22\font=\@@_get_fontparam:nn {15} {AxisHeight}\relax
- }
- } {\l_@@_fontname_tl}
-
- \SetSymbolFont{symbols}{\l_@@_mversion_tl}
- {\encodingdefault}{\l_@@_family_tl}{\mddefault}{\updefault}
-
- \str_if_eq_x:nnT {\l_@@_mversion_tl} {normal}
- {
- \SetSymbolFont{symbols}{bold}
- {\encodingdefault}{\l_@@_family_tl}{\bfdefault}{\updefault}
- }
- }
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\@@_setup_legacy_fam_three:}
-% Similarly, this font is shrunk by an imperceptable amount for \TeX\ to load it again.
-% \begin{macrocode}
-\cs_new:Nn \@@_setup_legacy_fam_three:
- {
- \fontspec_set_family:Nxn \l_@@_family_tl
- {
- \l_@@_font_keyval_tl,
- Scale=0.99999,
- FontAdjustment={
- \fontdimen8\font= \@@_get_fontparam:nn {48} {FractionRuleThickness}\relax
- \fontdimen9\font= \@@_get_fontparam:nn {28} {UpperLimitGapMin}\relax
- \fontdimen10\font=\@@_get_fontparam:nn {30} {LowerLimitGapMin}\relax
- \fontdimen11\font=\@@_get_fontparam:nn {29} {UpperLimitBaselineRiseMin}\relax
- \fontdimen12\font=\@@_get_fontparam:nn {31} {LowerLimitBaselineDropMin}\relax
- \fontdimen13\font=0pt\relax
- }
- } {\l_@@_fontname_tl}
-
- \SetSymbolFont{largesymbols}{\l_@@_mversion_tl}
- {\encodingdefault}{\l_@@_family_tl}{\mddefault}{\updefault}
-
- \str_if_eq_x:nnT {\l_@@_mversion_tl} {normal}
- {
- \SetSymbolFont{largesymbols}{bold}
- {\encodingdefault}{\l_@@_family_tl}{\bfdefault}{\updefault}
- }
- }
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macrocode}
-\cs_new:Nn \@@_get_fontparam:nn
- {
-%<XE> \the\fontdimen#1\l_@@_font\relax
-%<LU> \directlua{fontspec.mathfontdimen("l_@@_font","#2")}
- }
-% \end{macrocode}
-%
-% \begin{macro}{\@@_fontspec_select_font:}
-% Select the font with \cs{fontspec} and define \cs{l_@@_font} from it.
-% \begin{macrocode}
-\cs_new:Nn \@@_fontspec_select_font:
- {
- \tl_set:Nx \l_@@_font_keyval_tl {
-%<LU> Renderer = Basic,
- BoldItalicFont = {}, ItalicFont = {},
- Script = Math,
- SizeFeatures =
- {
- {
- Size = \tf@size-
- } ,
- {
- Size = \sf@size-\tf@size ,
- Font = \l_@@_script_font_tl ,
- \l_@@_script_features_tl
- } ,
- {
- Size = -\sf@size ,
- Font = \l_@@_sscript_font_tl ,
- \l_@@_sscript_features_tl
- }
- } ,
- \l_@@_unknown_keys_clist
- }
- \fontspec_set_fontface:NNxn \l_@@_font \l_@@_family_tl
- {\l_@@_font_keyval_tl} {\l_@@_fontname_tl}
-% \end{macrocode}
-% Check whether we're using a real maths font:
-% \begin{macrocode}
- \group_begin:
- \fontfamily{\l_@@_family_tl}\selectfont
- \fontspec_if_script:nF {math} {\bool_gset_false:N \l_@@_ot_math_bool}
- \group_end:
- }
-% \end{macrocode}
-% \end{macro}
-%
-% \subsection{Functions for setting up symbols with mathcodes}
-% \seclabel{mathsymbol}
-%
-% \begin{macro}{\@@_process_symbol_noparse:nnn}
-% \begin{macro}{\@@_process_symbol_parse:nnn}
-% If the \feat{range} font feature has been used, then only
-% a subset of the Unicode glyphs are to be defined.
-% See \secref{rangeproc} for the code that enables this.
-% \begin{macrocode}
-\cs_set:Nn \@@_process_symbol_noparse:nnn
- {
- \@@_set_mathsymbol:nNNn {\@@_symfont_tl} #2 #3 {#1}
- }
-% \end{macrocode}
-% \begin{macrocode}
-\cs_set:Nn \@@_process_symbol_parse:nnn
- {
- \@@_if_char_spec:nNNT {#1} {#2} {#3}
- {
- \@@_process_symbol_noparse:nnn {#1} {#2} {#3}
- }
- }
-% \end{macrocode}
-% \end{macro}
-% \end{macro}
-%
-% \begin{macro}{\@@_remap_symbols:}
-% \begin{macro}{\@@_remap_symbol_noparse:nnn}
-% \begin{macro}{\@@_remap_symbol_parse:nnn}
-% This function is used to define the mathcodes for those chars which should
-% be mapped to a different glyph than themselves.
-% \begin{macrocode}
-\cs_new:Npn \@@_remap_symbols:
- {
- \@@_remap_symbol:nnn{`\-}{\mathbin}{"02212}% hyphen to minus
- \@@_remap_symbol:nnn{`\*}{\mathbin}{"02217}% text asterisk to "centred asterisk"
- \bool_if:NF \g_@@_literal_colon_bool
- {
- \@@_remap_symbol:nnn{`\:}{\mathrel}{"02236}% colon to ratio (i.e., punct to rel)
- }
- }
-% \end{macrocode}
-% \end{macro}
-% Where |\@@_remap_symbol:nnn| is defined to be one of these two, depending
-% on the range setup:
-% \begin{macrocode}
-\cs_new:Nn \@@_remap_symbol_parse:nnn
- {
- \@@_if_char_spec:nNNT {#3} {\@nil} {#2}
- { \@@_remap_symbol_noparse:nnn {#1} {#2} {#3} }
- }
-\cs_new:Nn \@@_remap_symbol_noparse:nnn
- {
- \clist_map_inline:nn {#1}
- { \@@_set_mathcode:nnnn {##1} {#2} {\@@_symfont_tl} {#3} }
- }
-% \end{macrocode}
-% \end{macro}
-% \end{macro}
-%
-% \subsection{Active math characters}
-%
-% There are more math active chars later in the subscript/superscript section.
-% But they don't need to be able to be typeset directly.
-%
-% \begin{macro}{\@@_setup_mathactives:}
-% \begin{macrocode}
-\cs_new:Npn \@@_setup_mathactives:
- {
- \@@_make_mathactive:nNN {"2032} \@@_prime_single_mchar \mathord
- \@@_make_mathactive:nNN {"2033} \@@_prime_double_mchar \mathord
- \@@_make_mathactive:nNN {"2034} \@@_prime_triple_mchar \mathord
- \@@_make_mathactive:nNN {"2057} \@@_prime_quad_mchar \mathord
- \@@_make_mathactive:nNN {"2035} \@@_backprime_single_mchar \mathord
- \@@_make_mathactive:nNN {"2036} \@@_backprime_double_mchar \mathord
- \@@_make_mathactive:nNN {"2037} \@@_backprime_triple_mchar \mathord
- \@@_make_mathactive:nNN {`\'} \mathstraightquote \mathord
- \@@_make_mathactive:nNN {`\`} \mathbacktick \mathord
- }
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\@@_make_mathactive:nNN}
-% Makes |#1| a mathactive char, and gives cs |#2| the meaning of mathchar |#1|
-% with class |#3|.
-% You are responsible for giving active |#1| a particular meaning!
-% \begin{macrocode}
-\cs_new:Nn \@@_make_mathactive_parse:nNN
- {
- \@@_if_char_spec:nNNT {#1} #2 #3
- { \@@_make_mathactive_noparse:nNN {#1} #2 #3 }
- }
-% \end{macrocode}
-%
-% \begin{macrocode}
-\cs_new:Nn \@@_make_mathactive_noparse:nNN
- {
- \@@_set_mathchar:NNnn #2 #3 {\@@_symfont_tl} {#1}
- \@@_char_gmake_mathactive:n {#1}
- }
-% \end{macrocode}
-% \end{macro}
-%
-% \subsection{Delimiter codes}
-%
-% \begin{macro}{\@@_assign_delcode:nn}
-% \begin{macrocode}
-\cs_new:Nn \@@_assign_delcode_noparse:nn
- {
- \@@_set_delcode:nnn \@@_symfont_tl {#1} {#2}
- }
-% \end{macrocode}
-%
-% \begin{macrocode}
-\cs_new:Nn \@@_assign_delcode_parse:nn
- {
- \@@_if_char_spec:nNNT {#2} {\@nil} {\@nil}
- {
- \@@_assign_delcode_noparse:nn {#1} {#2}
- }
- }
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\@@_assign_delcode:n}
-% Shorthand.
-% \begin{macrocode}
-\cs_new:Nn \@@_assign_delcode:n { \@@_assign_delcode:nn {#1} {#1} }
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\@@_setup_delcodes:}
-% Some symbols that aren't mathopen/mathclose still need to have delimiter codes assigned.
-% The list of vertical arrows may be incomplete.
-% On the other hand, many fonts won't support them all being stretchy.
-% And some of them are probably not meant to stretch, either. But adding them here doesn't hurt.
-% \begin{macrocode}
-\cs_new:Npn \@@_setup_delcodes:
- {
- % ensure \left. and \right. work:
- \@@_set_delcode:nnn \@@_symfont_tl {`\.} {\c_zero}
- % this is forcefully done to fix a bug -- indicates a larger problem!
-
- \@@_assign_delcode:nn {`\/} {\g_@@_slash_delimiter_usv}
- \@@_assign_delcode:nn {"2044} {\g_@@_slash_delimiter_usv} % fracslash
- \@@_assign_delcode:nn {"2215} {\g_@@_slash_delimiter_usv} % divslash
- \@@_assign_delcode:n {"005C} % backslash
- \@@_assign_delcode:nn {`\<} {"27E8} % angle brackets with ascii notation
- \@@_assign_delcode:nn {`\>} {"27E9} % angle brackets with ascii notation
- \@@_assign_delcode:n {"2191} % up arrow
- \@@_assign_delcode:n {"2193} % down arrow
- \@@_assign_delcode:n {"2195} % updown arrow
- \@@_assign_delcode:n {"219F} % up arrow twohead
- \@@_assign_delcode:n {"21A1} % down arrow twohead
- \@@_assign_delcode:n {"21A5} % up arrow from bar
- \@@_assign_delcode:n {"21A7} % down arrow from bar
- \@@_assign_delcode:n {"21A8} % updown arrow from bar
- \@@_assign_delcode:n {"21BE} % up harpoon right
- \@@_assign_delcode:n {"21BF} % up harpoon left
- \@@_assign_delcode:n {"21C2} % down harpoon right
- \@@_assign_delcode:n {"21C3} % down harpoon left
- \@@_assign_delcode:n {"21C5} % arrows up down
- \@@_assign_delcode:n {"21F5} % arrows down up
- \@@_assign_delcode:n {"21C8} % arrows up up
- \@@_assign_delcode:n {"21CA} % arrows down down
- \@@_assign_delcode:n {"21D1} % double up arrow
- \@@_assign_delcode:n {"21D3} % double down arrow
- \@@_assign_delcode:n {"21D5} % double updown arrow
- \@@_assign_delcode:n {"21DE} % up arrow double stroke
- \@@_assign_delcode:n {"21DF} % down arrow double stroke
- \@@_assign_delcode:n {"21E1} % up arrow dashed
- \@@_assign_delcode:n {"21E3} % down arrow dashed
- \@@_assign_delcode:n {"21E7} % up white arrow
- \@@_assign_delcode:n {"21E9} % down white arrow
- \@@_assign_delcode:n {"21EA} % up white arrow from bar
- \@@_assign_delcode:n {"21F3} % updown white arrow
- }
-% \end{macrocode}
-% \end{macro}
-%
-% \subsection{(Big) operators}
-%
-% The engine does what is necessary to deal with big operators for us
-% automatically with \cmd\Umathchardef.
-% However, the limits aren't set automatically; that is, we want to define,
-% a la Plain \TeX\ \etc, |\def\int{\intop\nolimits}|, so there needs to be a
-% transformation from \cmd\int\ to \cmd\intop\ during the expansion of
-% \cmd\_@@_sym:nnn\ in the appropriate contexts.
-%
-% \begin{macro}{\l_@@_nolimits_tl}
-% This macro is a sequence containing those maths operators that require a
-% \cmd\nolimits\ suffix.
-% This list is used when processing |unicode-math-table.tex| to define such
-% commands automatically (see the macro \cs{@@_set_mathsymbol:nNNn}).
-% I've chosen essentially just the operators that look like integrals;
-% hopefully a better mathematician can help me out here.
-% I've a feeling that it's more useful \emph{not} to include the multiple
-% integrals such as $\iiiint$, but that might be a matter of preference.
-% \begin{macrocode}
-\tl_set:Nn \l_@@_nolimits_tl
- {
- \int\iint\iiint\iiiint\oint\oiint\oiiint
- \intclockwise\varointclockwise\ointctrclockwise\sumint
- \intbar\intBar\fint\cirfnint\awint\rppolint
- \scpolint\npolint\pointint\sqint\intlarhk\intx
- \intcap\intcup\upint\lowint
- }
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\addnolimits}
-% This macro appends material to the macro containing the list of operators
-% that don't take limits.
-% \begin{macrocode}
-\DeclareDocumentCommand \addnolimits {m}
- {
- \tl_put_right:Nn \l_@@_nolimits_tl {#1}
- }
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\removenolimits}
-% Can this macro be given a better name?
-% It removes an item from the nolimits list.
-% \begin{macrocode}
-\DeclareDocumentCommand \removenolimits {m}
- {
- \tl_remove_all:Nn \l_@@_nolimits_tl {#1}
- }
-% \end{macrocode}
-% \end{macro}
-%
-% \subsection{Radicals}
-%
-% \begin{macro}{\l_@@_radicals_tl}
-% The radicals are organised in \cs{@@_set_mathsymbol:nNNn}.
-% We organise radicals in the same way as nolimits-operators.
-% (\cs{cuberoot} and \cs{fourthroot}, don't seem to behave as proper radicals.)
-% \begin{macrocode}
-\tl_set:Nn \l_@@_radicals_tl {\sqrt \longdivision}
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macrocode}
-%</package&(XE|LU)>
-% \end{macrocode}
-%
-\endinput